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Correlated evolution of thermal characteristics and foraging strategy in lacertid lizards

โœ Scribed by D. Verwaijen; R. Van Damme


Book ID
104035041
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
179 KB
Volume
32
Category
Article
ISSN
0306-4565

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โœฆ Synopsis


  1. We investigated the association between field body temperatures (T b ), field air temperatures (T a ), and their differences (D) with measurements of foraging activity (percentage of time moving (PTM), number of movements per minute (MPM) and proportion of prey attacked while moving (PAM)) for 25 species of lacertid lizards. 2. Lizards active at relatively high field body temperatures tended to have higher PTM and PAM values. We found no association between temperatures and MPM. The difference D did not co-vary with PTM and MPM, but showed a positive trend with PAM. 3. Our results seem robust with regard to the assumptions of different models of evolution and to the phylogenetic trees used.

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